Graphics: -renderquality: Set the render quality of the game. (0-4) -shadowdensity: Set the shadow density of the game. (0-16) -texturequality: Set the texture quality of the game. (0-2) -viewdistance: Set the view distance of the game (0-99) -detailquality: Set the detail quality of the game. (0-99) -novblank: Disable wait for vblank (No Vsync) -norestrictions: Do not limit graphics settings -width: Set width of main render window (default is 800) -height: Set height of main render window (default is 600) -safemode: Run the graphics in the lowest setting possible -frameLimit: Limit frame to interval of refresh rate (ex If refreshrate is 60HZ –frameLimit 1 = Locks down to 60HZ) -refreshrate: Set the refresh rate of main render window – Warning - Monitor must support (ex. –refreshrate 60) -fullscreen: Force fullscreen mode -windowed: Force windowed mode -availablevidmem: Set amount of physical Video Memory(ex. –availablevidmem 0.9) -percentvidmem: Percentage of video memory to make available to GTA

Graphics: -renderquality: Set the render quality of the game. (0-4) -shadowdensity: Set the shadow density of the game. (0-16) -texturequality: Set the texture quality of the game. (0-2) -viewdistance: Set the view distance of the game (0-99) -detailquality: Set the detail quality of the game. (0-99) -novblank: Disable wait for vblank (No Vsync) -norestrictions: Do not limit graphics settings -width: Set width of main render window (default is 800) -height: Set height of main render window (default is 600) -safemode: Run the graphics in the lowest setting possible -frameLimit: Limit frame to interval of refresh rate (ex If refreshrate is 60HZ –frameLimit 1 = Locks down to 60HZ) -refreshrate: Set the refresh rate of main render window – Warning - Monitor must support (ex. –refreshrate 60) -fullscreen: Force fullscreen mode -windowed: Force windowed mode -availablevidmem: Set amount of physical Video Memory(ex. –availablevidmem 0.9) -percentvidmem: Percentage of video memory to make available to GTA

Graphics: -renderquality: Set the render quality of the game. (0-4) -shadowdensity: Set the shadow density of the game. (0-16) -texturequality: Set the texture quality of the game. (0-2) -viewdistance: Set the view distance of the game (0-99) -detailquality: Set the detail quality of the game. (0-99) -novblank: Disable wait for vblank (No Vsync) -norestrictions: Do not limit graphics settings -width: Set width of main render window (default is 800) -height: Set height of main render window (default is 600) -safemode: Run the graphics in the lowest setting possible -frameLimit: Limit frame to interval of refresh rate (ex If refreshrate is 60HZ –frameLimit 1 = Locks down to 60HZ) -refreshrate: Set the refresh rate of main render window – Warning - Monitor must support (ex. –refreshrate 60) -fullscreen: Force fullscreen mode -windowed: Force windowed mode -availablevidmem: Set amount of physical Video Memory(ex. –availablevidmem 0.9) -percentvidmem: Percentage of video memory to make available to GTA

Graphics:
-renderquality: Set the render quality of the game. (0-4)
-shadowdensity: Set the shadow density of the game. (0-16)
-texturequality: Set the texture quality of the game. (0-2)
-viewdistance: Set the view distance of the game (0-99)
-detailquality: Set the detail quality of the game. (0-99)
-novblank: Disable wait for vblank (No Vsync)
-norestrictions: Do not limit graphics settings
-width: Set width of main render window (default is 800)
-height: Set height of main render window (default is 600)
-safemode: Run the graphics in the lowest setting possible
-frameLimit: Limit frame to interval of refresh rate
(ex If refreshrate is 60HZ –frameLimit 1 = Locks down to 60HZ)
-refreshrate: Set the refresh rate of main render window
– Warning - Monitor must support (ex. –refreshrate 60)
-fullscreen: Force fullscreen mode
-windowed: Force windowed mode
-availablevidmem: Set amount of physical Video Memory(ex. –availablevidmem 0.9)
-percentvidmem: Percentage of video memory to make available to GTA

System:
-noprecache: Disable precache of resources
-nomemrestrict: Disable memory restrictions
How to use it ?

Just paste any one of those commands in that text document will work ?
It should look like this for whatever commands you want to use. Use a blank space to separate each command you put in the text file.